{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755263",
    "entityType": "User",
    "nonce": "0x72faf57afb2847b73cc79b6afe9a61c185635fecbf088b041555bbd1143d6e33",
    "signature": "0xb16eea137915e02b9cb150297a22081fb11f27778b67763c9ddc8b6b258cf9bc2c70f5060cf8d764340f86848a2723c985e35b0a5fa7f059614dc35e566789ef1b",
    "signer": "0xF2c19977A72e7f63bBbD9063748E52c002b22f6b",
    "userId": "957488166"
  }
}