{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111000",
    "entityType": "User",
    "nonce": "0x3511b0e1054adacf3d000c421a79f4e02acec4b0265f7fb63d6aa2c91548cb61",
    "signature": "0x281bea5960669ecaea71c6d3cb7d94a70abdeccfb5d2e904b1621b2f6e65635e31ee8b553e128fa8d6d08520da1a50465e8ae457b0ac49a7ededc25e015183ae1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}