{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4e5b09a7c41cc2c114597093416c4d977e4b7590915388df96e8215e31206b77",
    "signature": "0x5e8ebb1666068cc544a10afb35fe3fe2968134bbc8c8874b5adde4345f37c52f3ddff072cf9156496edc0570db451f923b0e59bf0c0e9df40665c8b2fafc47641c",
    "signer": "0x0DC7E7004FFc424a8E4536Bce69afaaaFa185E41",
    "userId": "59880570"
  }
}