{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "454385",
    "entityType": "User",
    "nonce": "0xb8e2c6d27f01ce2ec25fb6f0d9814e0d081980b469d7a3e75a56dc2ed2b7902e",
    "signature": "0x6b736e549103e499490444eede6b6f288b55a93c4801b848f8f697ceb71776e66d78312afb71149f7ab4c4ba0d22a32928cd28bc993841cf76d02cdfdf91abb41c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}