{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xda01af0b3128310fbb7b05bbee586d4ad07cc323e5999b32f899e144ce7050e1",
    "signature": "0xaab1930a4facda95629098695a8854bfa830c8d446f01330201156d2aad274e01de6c8faf588cb884cb0a0e274d2625a5b74bf36496a93f82e12181c557645df1b",
    "signer": "0xD0e0324a931517A73FEeac96Ec0Ce3e14750ccF4",
    "userId": "783214783"
  }
}