{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x32c4d8eb086ab65cf79c1225636afefbc2cd1bbe44bdbe000f712f96968f3b13",
    "signature": "0x6991929d216fe8c6f32819581ce6a5c32b3e3ba2d2e9017f007145db2b0f80b93711d63c3e79f13619baec5b35e2af37ce47cc55dd991dc4b7f57f65b06a5b0f1c",
    "signer": "0x0b919070bf4822A85C3b514201b2750E94a640a6",
    "userId": "429134824"
  }
}