{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3485",
    "entityType": "User",
    "nonce": "0x0d2b1888658106cfaac1b2bf466efc25990a8617cf81688a0c953996e5048bc2",
    "signature": "0x52e3ee8b829705e9c1f62a85ecdfe4ea37e0d326311881e8035a1218a0c3c1b5791c7da933fa803c161ae4dcf3d985f3b10f926699c14f6f068e38ff53c0b4091b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}