{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0x76e44333b3d3a7d5d7d9f4ce0265c01c5e77c27a19738e9f347be0f34407b9a1",
    "signature": "0xff07669522513329e1a1091f317205757066e8d1bba6682b8d57497fcc5c10ad14608d0d5914902ee072b966b8facf30f7447d166751135e7d0c30aaa05efbe01c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}