{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42617",
    "entityType": "User",
    "nonce": "0x8ecb0587fa8b3af08abde278ebf7d5c639d3757ac3a91a930662683324c4173a",
    "signature": "0x69c6f5ed7ddce43522880d29871bdb62ff47be72558a7e6040903767330f328720cc40de96034d8fa2d3a71d420cd299450a65fb8ebacf67a5584f5ffeb150311b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}