{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307933",
    "entityType": "User",
    "nonce": "0x1af4e3a04af31852091a2cce729cb5e4d17259fba6a70cdd364df9e24cde069e",
    "signature": "0x87361f05044552c72c2d93fee6409d623e108b1771ad0e426490c21a502298ed2f422c68da0b22b9c8b26eb7640ceeeb91b010265fc6050be70a9a3c139c620d1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}