{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "931612513",
    "entityType": "User",
    "nonce": "0x55ae43edec91cda0ea43e1904d1e19b0f40a231533bbaba544fb592586d2d116",
    "signature": "0xd63cd85c70a8c9f3f4ff348ff1bd9c38534c81917d7380d55b1558a0c32bb1777933cf797025acd542c807270245b17a0fc2166ea9f968602adc42c72fcc26e11b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}