{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6db1712638eaddcc6a1087e2d34aec3f403ee988bb2a0975bf7c40d23c4fd2fd",
    "signature": "0xb3193b94a44117e0ae734c5991a804dc35252e6cefb6aa951faab2346e4827ac0a94447be3efd9f91d303ddc8073b201b8d1188eba593621fe32d7ef036944e81c",
    "signer": "0x9FeC2B9C826d23C9cD13d34D23dEd8E681eD5AC1",
    "userId": "935959282"
  }
}