{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "360387",
    "entityType": "User",
    "nonce": "0x3f73bff7d56327abb61c2b837ad5ca4b65923cd7c45710911cde8f554f0121e3",
    "signature": "0x8d241f976f6b010d1898040ecd2869a22aa63ad1f9750944ecf2f23cedad19064344fac52586f7038825c39c6fe771d9b3e1c99ac70c810168bf9bc421ddeb211c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}