{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54860",
    "entityType": "User",
    "nonce": "0x038d383cc25bc75a5b70a20e06a1542dcfe48004da0c26b4f678d5c8c293a2db",
    "signature": "0xe22e145102e501996fe942061c8f3ad99939125902be3318f849ae3d0541f04012ce304baa2bf5b2b15596c51125583707b539b93b77c7b42471ba897ceb7ebf1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}