{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53010",
    "entityType": "User",
    "nonce": "0x296a905551e3f39999194d3143de7e5dce8dde901b4673dcef68cf9539303ecc",
    "signature": "0xfd01ef7e747abcb5743bf5a0f61d1ccd945fa5dc270ca4f969cf6f46cbcfbc630fe11b88a0b2b9a81a3625e3d8e5ae4bee66989f90e7841175fc866dcbe264c01b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}