{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "656131650",
    "entityType": "User",
    "nonce": "0x3e6ca61fe2d493fc84cab7bbd64b46db4ec28317429aaf7063c137aa1859f9bb",
    "signature": "0x9890505720b924ba3b4d7781e459f62bda7796a1fdce9d6e1e2ea23bee0095a6130579b594e18a0c0efd748b021f139040f3061e837222c61b8bd9af2afa5e4c1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}